History of The Sundial

Overview

The Sundial is a six-player matchmade arena activity on Mercury (Fields of Glass) introduced in Season of Dawn (December 2019). Osiris enlists you to protect the Sundial, a time-traveling device, from the Red Legion Psion Flayers who want to rewrite history. It requires the quest "A Matter of Time" to unlock. Two tiers: normal (850 Power, matchmade) and Legend (950 Power, pre-made fireteam, extra modifiers). Sources do not state a vault date.

Encounters

You fight Cabal across Mercury's present, past and future, filling a progress bar through four stages, then a final boss.

1. Ascent
2. Gatecrash
3. Datamine
4. Bombardment
5. Psion Flayer boss: the Psion sisters Niruul, the Hollow Voice (void barriers, shoot nodes to escape), Ozletc, the Sky Piercer (arc strikes), Tazaroc, the Sun Eater (telegraphed solar fireballs) and Inotam, Oblivion's Triune (all three abilities plus intermission minibosses).

Rewards

Loot depends on linked Sundial Obelisks: nine weapons including Breachlight, Steelfeather Repeater, Line in the Sand and Martyr's Retribution, plus the Exotic quest for the Devil's Ruin sidearm.